Answer:
x = 39
Step-by-step explanation:
Using the property of parallelograms
• Consecutive angles are supplementary
∠A and ∠B are consecutive angles, thus sum to 180, that is
2x - 8 +3x - 7 = 180
5x - 15 = 180 ( add 15 to both sides )
5x = 195 ( divide both sides by 5 )
x = 39
